this is my own opinion but it may help others.
I have found that all the ICOs i have invested in have launched at almost the ICO price but in a few days dipped below the ICO prices by half or 5X for some.
With this i have discovered its better not to invest in an ICO but wait for the launch and the DIP to buy it at the corrected prices made by market forces.
Its just too hard to tell the real or recommended value of a token in an ICO these days.
Hope this helps to the new investors thinking of ICOs
Right said. I agree with you. I also get a lot of difference between ICO of 2017 and 2018. There was a lot of successful ICO in 2017 but in 2018 I don't find much successful ICO. In 2018 at the end of ICO, the token price has gone so low. But in 2017 I have made much profit from ICO investing.